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Flight Reliability

F9 1994 · Frontier Airlines

Las Vegas → Denver (LAS–DEN)

90
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
3 min early
Average arrival delay
0.6%
Cancelled
15 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

What the data says

Tuesdays have been rough.

F9 1994 arrived on time 98% of the time on Wednesdays and just 72% on Tuesdays. That gap is worth planning around.

Better than the LAS–DEN route average.

F9 1994 arrived on time 85% of the time, versus 77% across the LAS–DEN route.

Better than the Frontier Airlines network average.

F9 1994 arrived on time 85% of the time, versus 73% across the Frontier Airlines network.

Recent months have been rougher.

F9 1994 arrived on time 80% of the time over the last three months in the data, compared with 88% in the three months before that.

The breakdown

On-time by weekday
  • Mon75%(48 flights)
  • Tue72%(50 flights)
  • Wed98%(44 flights)
  • Thu87%(47 flights)
  • Fri90%(48 flights)
  • Sat82%(50 flights)
  • Sun90%(50 flights)
On-time by departure window
  • 12–3 AM84%(331 flights)
  • 6–9 AM—(6 flights)
On-time trend by month
74%
May

Jun 73% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202584%31
August 202587%31
September 202590%29
October 202587%30
November 202593%29
December 202589%26
January 202679%19
February 202695%21
March 202683%30
April 202683%30
May 202674%31
Departures on time
79%
Diverted
0%
Flights flown
337
Months covered
12

Same route, other flights

Keep nerding

Based on 339 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.